title: Sialolipoma of the parotid gland: Case report with literature review comparing major and minor salivary gland sialolipomas.
abstract: Sialolipoma is a rare tumor found within both major and minor salivary glands. Here we discuss sialolipoma of the parotid gland and briefly review the English literature. Including our case, a total of 35 sialolipomas have been reported, 18 within major salivary glands and 17 within minor salivary glands. Major gland sialolipomas most often are presented in the parotid gland (77%) and those from minor glands were most often seen in the palate (41%). All lesions were well circumscribed and contained mature adipose tissue intimately admixed with benign salivary gland components. Ductal dilatation was found in 100% of minor salivary gland sialolipomas but in only 28% of major salivary gland tumors. Nerve entrapment has also rarely been noted in major salivary glands (14%) whereas myxoid degeneration has been identified in rare minor salivary glands tumors (13%). Treatment is surgical excision and is curative with no reports of recurrence.
authors.affiliation: Department of Pathology, The University of Tennessee Health Science Center, Memphis, TN, USA.
authors.forename: Sohail
authors.initials: S
authors.lastname: Qayyum
authors.forename: Ryan
authors.initials: R
authors.lastname: Meacham
authors.forename: Merry
authors.initials: M
authors.lastname: Sebelik
authors.forename: Nadeem
authors.initials: N
authors.lastname: Zafar
keywords: Lipoma; major salivary gland; minor salivary gland; parotid gland; sialolipoma